Service assignment apparatus

a technology of service assignment and service, applied in the field of service assignment apparatus, can solve the problems of not being able to adapt all network elements, providing a corresponding service, and affecting the transmission of data from the sender,

Inactive Publication Date: 2006-07-11
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]An object of the present invention is to provide a service assignment apparatus which sets an appropriate service in a service-incompatible network element so that the network as a whole can guarantee a service corresponding to a service request, even when the service-incompatible apparatus cannot inherently provide the service corresponding to the service request.

Problems solved by technology

However, networks often include a network element which cannot process a specific service request, and cannot therefore provide a corresponding service even though the network element has a service providing function.
Nevertheless, it is not realistic to adapt all network elements constituting a network for such a specific service, and it is desirable to effectively use limited network resources.
However, the bandwidth is not reserved by the RSVP-incompatible router 104.
Therefore, a problem can occur in the data transmitted from the sender 101 to the receiver 102.
Therefore, the network element cannot provide the requested service.
Resultantly, sometimes the network cannot provide the requested service.
However, the RSVP-incompatible router 104 cannot perform processing for reserving a bandwidth.
However, the bandwidth is not reserved by the RSVP-incompatible router 104.

Method used

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Experimental program
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first embodiment

[0056]The first embodiment is explained below. First, the constructions of the respective apparatuses are explained.

[0057]FIGS. 3, 4, and 5 are block diagrams respectively illustrating exemplary constructions of a policy server, an RSVP-compatible router, and an RSVP-incompatible router in the first embodiment.

[0058]As illustrated in FIG. 3, the policy server 80 comprises an SNMP reception unit 81, a path information table 83, a target-apparatus determining unit 84, a service mapping table 85, a service mapping unit 86, an apparatus setting unit 87, and an SNMP transmission unit 88. The SNMP reception unit 81 receives bandwidth-reservation information e from the RSVP-compatible router 50, and the SNMP transmission unit 88 sends setting information h to the RSVP-incompatible router 70.

[0059]As illustrated in FIG. 4, the RSVP-compatible router 50 comprises a Path-message reception unit 51, a path memory unit 52, a Path-message transmission unit 53, a Resv-message reception unit 54, a ...

second embodiment

[0078]FIGS. 9 and 10 are block diagrams respectively illustrating exemplary constructions of a policy server and an RSVP-compatible router in the

[0079]As illustrated in FIG. 9, the policy server 80 comprises a path information table 83, a target-apparatus determining unit 84, a service mapping table 85, a service mapping unit 86, an apparatus setting unit 87, an SNMP transmission unit 88, a bandwidth-reservation-decision policy table 89, a COPS reception unit 90, a bandwidth-reservation-permission decision unit 91, and a COPS transmission unit 92. The SNMP transmission unit 88 sends setting information h to the RSVP-incompatible router 70. The COPS reception unit 90 receives permission request data f from the RSVP-compatible router 50. The COPS transmission unit 92 sends permission result information g to the RSVP-compatible router 50.

[0080]As illustrated in FIG. 10, the RSVP-compatible router 50 comprises a Path-message reception unit 51, a path memory unit 52, a Path-message trans...

third embodiment

[0092]FIGS. 11, 12 and 13 are block diagrams respectively illustrating exemplary constructions of a policy server, an RSVP-compatible router, and an RSVP-incompatible router in the

[0093]As illustrated in FIG. 11, the policy server 80 comprises an SNMP reception unit 81, a dynamic network information table 82, a path information table 83, a target-apparatus determining unit 84, a service mapping table 85, a service mapping unit 86, an apparatus setting unit 87, an SNMP transmission unit 88, a bandwidth-reservation-decision policy table 89, a COPS reception unit 90, a bandwidth-reservation-permission decision unit 91, and a COPS transmission unit 92. The SNMP reception unit 81 receives network information k from the RSVP-compatible router 50, and network information m from the RSVP-incompatible router 70. The SNMP transmission unit 88 sends setting information h to the RSVP-incompatible router 70. The COPS reception unit 90 receives permission request data f from the RSVP-compatible r...

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PUM

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Abstract

A service assignment apparatus sets an appropriate service in a service-request-incompatible apparatus as a network element so as to guarantee the service in the entire network. A service-request-compatible apparatus processes a received network-service request, and provides a service. A network-information collection unit in the service assignment apparatus collects information on a service-provision state of the service-request-compatible apparatus. A target-apparatus determination unit determines a service-request-incompatible apparatus based on the collected information on the service-provision state. A service mapping unit determines a service which the service-request-incompatible apparatus can provide, based on the information on the service-provision state and information on the determined service-request-incompatible apparatus. A service setting unit sets the service in the service-request-incompatible apparatus.

Description

BACKGROUND OF THE INVENTION[0001]1) Field of the Invention[0002]The present invention relates to a service assignment apparatus. In particular, the present invention relates to a service assignment apparatus which assigns an appropriate service to one of a plurality of network elements constituting a network and having various functions, when the network element cannot provide a service corresponding to a service request, so that the corresponding service can be guaranteed in the entire network.[0003]2) Description of the Related Art[0004]Recently, various services are provided by a network, and some service are provided by processing a service request from an external device. However, networks often include a network element which cannot process a specific service request, and cannot therefore provide a corresponding service even though the network element has a service providing function. Nevertheless, it is not realistic to adapt all network elements constituting a network for su...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06F15/173H04L12/24H04L12/26H04L12/70
CPCH04L12/5695H04L41/0213H04L41/0803H04L47/18H04L47/822H04L47/724H04L47/781H04L47/805H04L47/2425H04L47/70
Inventor KUROSE, YOSHITOSHINOMURA, YUJIKANO, SHINYA
Owner FUJITSU LTD
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